package com.hmall.item.service.impl;

import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.hmall.common.dto.PageDTO;
import com.hmall.item.mapper.ItemMapper;
import com.hmall.item.pojo.Item;
import com.hmall.item.service.IItemService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

@Service
public class ItemService extends ServiceImpl<ItemMapper, Item> implements IItemService {
    @Autowired
    private ItemMapper itemMapper;
    @Override
    public PageDTO<Item> list4page(Integer page, Integer size) {
        Long total = itemMapper.count();
        int index = (page - 1) * size;
        List<Item> list = itemMapper.page4list(index, size);

        return new PageDTO<Item>(total,list);
    }
}
